Forms



Jan. 7, 1958 H. J. BLAsxus ETAL 2,818,627

FORMS 3 Sheets-Sheet 1 Filed Apri-l '7, 1955 Jan. 7', 17958 H. :BLAslusErm.; 2,818,627

FORMS v Filed April 7, 1955 3 Sheets-Sheet 2 fly Z7 H. J. BLAsu-Js Erm.2,818,627

FORMS Jan. 7, 1958 3 Sheets-Sheet 3 Filed April '7. 1955 Lul-I Il" far WW i; M

FORMS Herman J. Blasius, Forest Park, and Richard G.`Reichle Riverside,lll., assignors to American Wilbert Vault Corp., Forest Park, Ill., acorporation of Illinois u Application April 7, 1955, Serial No.499,952f# 1 Claim. (Cl. 25-128) This invention relates to a collapsible formfor making concrete receptacles and, more particularly, to a collapsibleburial vault form which may lbe used as the inner core or form in makinga concrete burial vault or in making the inner Iasphalt component of acomposite asphalt-concrete burial vaul or like receptacle.

lAn object of the inventi-on is to provide a new and improvedcollapsible inner core or form fof making con-` crete receptacles, suchas the box-like'portion `of concrete burial vaults, or component partsthereof, which is relatively simple and inexpensive in construction andsimple and ecient in operation.

Another object of the invention is to provide 'a new and improved andrelatively simple collapsible burial vault form or core which may bereadily collapsed by a manually operated mechanism embodied therein andwithout the use of any power-operated devices or the like.

A further object of the invention is to provide in the new collapsibleform unit a new and improved construction for moving the hingedlyinterconnected side wall sections and the hingedly interconnected endwall sections into. inwardly extended or collapsed position and`forforming the said hingedly interconnecte side wall sections and the saidhingedly interconnected end wall sections back into outwardly extendedor effective and molding position.

Other objects will appear hereinafter. y

Fig. 1 is a sectional plan view on line 1 1 in Fig. 3 showing thehingedly interconnected side wall sections and the hingedlyinterconnected end wall sections thereof in inwardly collapsed position;

Fig. 2 is a fragmentary sectional plan view of the new collapsible innercore or burial vault form, similar to`Fig. l, 4but showing the side wallsections and the end wall sections thereof in outwardly extendedeffective or molding position;

Fig. 3 is 'a vertical sectional view on line 3 3 in Fig. 2;

Fig. 4 is a vertical sectional view/on line 4 4 in Fig. 3;

Fig. 5 is a fragmentary top plan view on line 5 5 in Fig. 4;

Fig. 6 is a fragmentary perspective view, partly in section, showingcertain parts embodied in the construction of the burial vault form orcore for moving the hingedly interconnected side wall sections and thehingedly interconnected end wall sections into and out of effective ormolding position;

Fig. 7 is 'a fragmentary sectional View on Fig. 6; and y Fig. 8 is afragmentary sectional planview on line 8 8 in Fig. 4. f

The new collapsible inner core or form is adapted to be used with anysuitable outer form (not shown), but which is adapted for use in makingconcrete receptacles, such as burial vaults, and 'an outer form beingshown, for example, in our copending application, Serial No. 479,509,led January 3, 1955. i j

, A preferred embodiment of the new collapsible form or liner-7 in core,for use in making concrete burial vaults or like cou- Fice cretereceptacles, and for making the asphalt inner component of compositeasphalt-concrete burial vaults, is illustrated in the drawings, whereinit is generally indicated at 10, and is shown as being mounted upon asuitable flat steel base 11, and includes side wall sections 12 and 13and end wall sections 14 and 15 which are formed of suitable flat sheetmetal stock. Each of the side wall sections 12 has a pair of inwardlyextending angle ir-on ange members 13F attached thereto, on the innerside thereof, one adjacent the top and one adjacent the bottom thereof(Figs. 1, 2 and 4). These angle iron iange members 12F provide laterallyinwardly extending and vertically spaced reinforcing flanges on the sideWalls 12. Similar inwardly extending reinforcing angle iron flangemembers 13F are provided on the inner sides of the side wall sections 13(Figs l, 2 and 3). Likewise, the end Wall sections 14 'and 15 havesimilar laterally inwardly extending vertically spaced reinforcing angleiron flange members 14F and 15P, respectively, thereon (Figs. l, 2 and4).

The side wall sections 12 and 13 are hingedly interconnected, as at 16and 17, to the end wall sections 14 and 15, respectively, as shown inFig. 1.

The side wall sections 12 and 13 of each side wall are hingedlyinter-connected with each other at their longitudinal centers, as at 18,and the end wall sections are similarly hingedly interconnected to eachother at the longitudinal centers thereof, as at 19.

The base 11 of the new collapsible burial vault form or core 10 includesside rails 28 and a central and longitudinally extending portion ormember 20 and, rotatably mounted thereon, centrally of the newcollapsible form or core 10, is a vertically extending operating shaft21 on which vertically spaced cam plates 22 are mounted adjacent the topand bottom of the form, as shown in Figs. 1, 2 and 3 of the drawings.Each of these cam plates 22 is in the form 1of a rhombus, in plan.

The vertically extending operating shaft 21 has a ilanged sleeve 35attached thereto adjacent the top thereof, and this flanged sleeve 35has angularly extending brace rods 36 attached thereto at their upperends, these brace rods 36 having their lower end portions attached toextensions 37 of the side rails 38 of the base 11. In this manner thevertical center operating shaft 21 is supported in its proper verticalposition (Figs. l, 2 and 3).

The operating mechanism for the new collapsible form or core 10 includesan upper pair and a lower pair of relatively short transverselyextending push rods 23, each of which is pivotally connected at itsouter end, as at 27, to 'a side wall pusher bar 28, and the inner endportion of each of these push rods 23 is pivotally connected, as at 25,to one corner portion of one of the rhombus-shaped cam plates 25.

The operating mechanism for the new collapsible inner core or form 10also includes an upper pair and a lower pair of longitudinally extendingpush rods 24, each of which is pivotally connected at its inner end, asat 26, to one corner portion of one of the rhombus-shaped cam plates 22,and the outer end portion of each of these longitudinally extending pushrods 24 is pivotally connected, as at 31, to an end wall pusher bar 32.

It will be noted by reference to Figs. l, 2, 6 and 7 of the drawingsthat the laterally inwardly extending ange members 12F-13F on the sidewall sections 12 and 13 and the inwardly extending flange members 14Fand 15F on the end wall sections 14 and 15, respectively, terminatesomewhat short of each other at their inner ends, for a reason whichwill be explained presently. Likewise, the outer end portions of theinwardly extending flange members 12F, 13F, 14F and 15P are beveled, asat 39 (Figs. 1 and 2) to permit movement of the side and end Wallsections of the form relative to each other at the corners thereof.

Thus it will be noted that one of the side wall pusher bars 2S' in eachof the top and bottom groups of pusher bars has one end portion weldedor otherwise fixed, as at 40 (Fig. 1), to the upper surface of one ofthe laterally inwardly extending flange members 12F which is attached toone of the side wall sections 12 and the other side wall pusher bar 28in each group of pusher bars has one end portion thereof welded, orotherwise secured, as at 41 (Fig. l) to the upper surface of one of theflange members 13F. Each of these side wall pusher bars 28 has attachedthereto at its other end an outwardly extending pusher arm 29. Each ofthese outwardly extending pusher arms 29 is adapted to abut the innervertical surface of the adjacent vertical wall of one of the angle ironflange members 12F or 13F inwardly of the longitudinal inner end edge 30of the adjacent side wall ilange member 12F or 13F (Fig. l).

Similarly, one of the end wall pusher bars 32 in each group of pusherbars has one end portion welded, or otherwise fixed, as at 42, to theupper horizontal surface of one of the laterally inwardly extendingflange members 14F of one of the end wall sections 14 and each of theseend wall pusher bars 32 has attached thereto at its other end anoutwardly extending pusher arm 33 which is adapted to engage the innervertical surface of one of the flange members 15F on one of the end wallsections 15, inwardly of the longitudinal inner end 34 thereof (Figs. l,6 and 7).

Similarly, the other end wall pusher bar 32 in each group of pusher barshas one end portion thereof welded, or otherwise secured, as at 43, tothe horizontal surface of one of the ange members 15F and each of thelatter two end wall pusher bars 32 has an outwardly extending pusher arm33 attached thereto at its opposite end (Figs. l, 2, 6 and 7).

An operating handle H is attached to the lower end portion of thevertically extending operating shaft 21, and this operating handle Hprojects laterally to one side of the form or core 10, as shown in Figs.1 and 2 of the drawings.

The side wall sections 12 and 13 have laterally inwardly extending coverplate-supporting flanges 12T and 13T welded or otherwise secured theretoat the top thereof, and similar cover plate-supporting anges 14T and 15Pare welded or otherwise secured to the end wall sections 14 and 15, atthe top thereof (Fig. 4).

In the use of the new collapsible form or core 10 the same may bearranged in position of use upon a r suitable hase 11 and a suitableouter form or mold (not shown) may be arranged thereon outwardly of theinner core or form 10, such an outer core or form being shown, forexample, in. our aforesaid copending application, Serial No. 479,509,tiled January 3, 1955.

Likewise, a suitable cover plate (not shown) may be removably mounted,in any suitable manner, on the cover plate-supporting flanges 12T-13T14Tand 15T.

The hingedly interconnected side wall sections 12 and 13 and thehingedly interconnected end wall sections 14 and 15 may then be arrangedin expanded or effective and molding position, as in Fig. 2, and aconcrete receptacle, such as the box-like receptacle portion of aconcrete burial vault, or the asphalt inner core of a compositeasphalt-concrete burial vault, molded therein, in a manner wellunderstood in the art.

However, after the molding operation, and after the concrete or theasphalt, as the case may be, has set or hardened to a desired extent,and it is desired to strip the new inner core or form 10 from the moldedreceptacle body, this may be accomplished by manipulating the handle Hand the vertical operating shaft 21 from the position in which the partsare shown in Fig. l, thereby hingedly collapsing the side wall sections12 and 13 and the end wall sections 14 and 15 into inwardly collapsedposition, as shown in Fig. 1.

During this operation the vertical operating shaft 21, cam plates 22,push rods 23 and side wall pusher bars 28 act, through the weldedconnections 40 and 41 of the side wall pusher bars 28 with the side wallflanges 12F and 13F, respectively, and the hinge connections 18, topivot the side wall sections 1213 inwardly about their hingedinter-connections 18. At the same time, the vertical operating shaft 21,cam plates 22, push rods 24, and end wall pusher bars 32 act, throughthe welded connections 42 and 43 of the end wall pusher bars 32 with theend wall flange members 14F and 15F, respectively, and the end wallsections 14 and 15 and their hinge connections 19, to pivot the end wallsections 14 and 15 about their hinged inter-connections 19 so as tohingedly co1- lapse the end wall sections 14 and 15 inwardly. ln thismanner the new inner core or form 10 is collapsed inwardly, therebyenabling it to be readily stripped from the concrete or asphalt box-likereceptacle portion of a concrete burial vault, or like receptacle, orfrom the asphalt inner core of a composite asphalt-concrete burial.

However, when it is desired to expand the new inner core or form 10 backinto extended or effective and molding position, as in Fig. 2, this mayreadily be accomplished by manipulating the operating handle H, shaft21, cam plates 22, push rods 23 and 24, and pusher bars 28 and 32 fromthe position in which these parts are shown in Fig. 1 into the positionin which they are shown in Fig. 2. During this operation the pusher bars28 and attached pusher arms 29 act through their welded connections 40and 41 with the side wall ange members 12F and 13F, respectively, andthrough the hinge connections 18, to expand the side wall sections 12and 13 back into effective or molding position, and when the parts reachthis position the side wall pusher arms 28 engage the verticallyextending portions of the other angle iron flange members 12F and 13F toretain the side wall sections 12 and 13 in extended and eifectiveposition. At the same time, the end wall pusher bars 32 and attachedpusher arms 33 act, through their welded connections 42 and 43 with thehorizontal portions of the end wall flange members 14F and 15F,respectively, and through the hinge connections 19 between the end wallsections 14 and 15, to expand the end wall sections 14 and 15 outwardlyinto extended or effective position, and when the end wall sections 14and 15 reach extended position the pusher arms 29 and 33 bear againstthe vertical surfaces of the adjacent ange members 12F-3F and 14F- ISFto retain the side wall sections 12-13 and the end wall sections 14-15in extended position until it is desired again to collapse the new forminner vault.

It will thus be seen from the foregoing description, considered inconjunction with the accompanying drawings, that the present inventionprovides a new and improved inner form or core for making the box-likereceptacle portion of a concrete burial vault, or the asphalt innercomponent of a composite asphalt-concrete burial vault or likereceptacle, and has the desirable advantages and characteristics, andaccomplishes its intended objects, including those hereinbefore pointedout, and others which are inherent in the invention.

We claim:

A collapsible form for molding a box-like receptacle of concrete or likematerial comprising upright side walls each including a pair of hingedlyinterconnected side wall sections, end walls each including a pair ofhingedly interconnected end wall sections with the hinges for all ofsaid walls being disposed on the inner sides thereof so as to presentsubstantially smooth outer wall surfaces, and manually operable meansfor manipulating the said side wall sections and the said end wallsections into and out of collapsed position and into and out of extendedor coplanar relationship about their hinged interconnections, saidmanually operable means including a vertically extending operating shaftarranged centrally within said form, vertically spaced horizontallyextending cam plates carried by said operating shaft, each of said sidewall sections and each of said end wall sections having a pair ofvertically spaced laterally inwardly horizontally extending reinforcingange members mounted on the inner surface thereof, a pair of side wallpusher bars each having one end portion rigidly attached to one of thesaid reinforcing ange members on one of said side wall sections at theinner end of said one side wall section, a pair of end wall pusher barseach having one end portion rigidly attached to one of the saidreinforcing flange members on one of said end wall sections at the innerend of said one end wall section, push rods radially arranged about saidcam plates, each of said pusher rods being pivotally interconnected atits radially outer end to one of said pusher bars and being pivotallyinterconnected at its radially inner end to one of said cam plates, saidpusher bars extending across and spanning the hinged interconnectionsbetween said side and end wall sections and being spaced inwardlytherefrom, and each of said pusher bars having a laterally outwardlyextending pusher arm arranged thereon at its other end portion so thateach pusher bar and arm straddles an associated hinge to engage theadjacent one of said side or end wall sections on the inner surfacethereof.

References Cited in the lile of this patent UNITED STATES PATENTS1,013,251 Witthoefft Jan. 2, 1912 1,458,145 Parsons I-une 12, 19232,707,814 Francis et al May 10, 1955

